Backing plate



FIG. 1 is a top perspective view of the backing plate showing our new design;

FIG. 2 is a bottom perspective view of the backing plate of FIG. 1;

FIG. 3 is a top view of the backing plate of FIG. 1;

FIG. 4 is an end view of the backing plate of FIG. 1; and,

FIG. 5 is a side view of the backing plate of FIG. 1.

The dash lines shown in the drawings are for illustrative purposes only and form no part of the claimed design. 

The ornamental design for a backing plate as shown and described. 